1,故障现象：
mysql: [Warning] Using a password on the command line interface can be insecure. ERROR 3678 (HY000) at line 1: Schema directory './zabbix' already exists. This must be resolved manually (e.g. by moving the schema directory to another location).
2，解决办法：
建库时报已经存在该数据库文件夹了。但通过 mysql-client连接发现不存在。
[root@localhost mysql]# rm -rf zabbix/
再次建库，就可以成功完成